Which statement best compares coral reef ecosystems to demersal ecosystems? coral reef ecosystems have high levels of nutrients in the water, and demersal ecosystems do not.
coral reef ecosystems are typically in shallow water, and demersal ecosystems can exist at any depth.
coral reef ecosystems can support large fish like sharks and rays, and demersal ecosystems cannot.
coral reef ecosystems may have starfish, clams, and other invertebrates, and demersal ecosystems have only fish.

I just took the test and the correct answer was B. Coral reef ecosystems are typically in shallow water, and demersal ecosystems can exist at any depth.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

a. suckling by young

b. hypothalamus

c. dopamine

d. trh

e. anterior pituitary

f. mammary glands

g. milk production